Floating thumb is a relatively rare hand deformity, but it has been on the rise in recent years. Many parents are concerned, especially parents of children with floating bunions, who already have a baby with a floating bunion and are ready to have another child, but are afraid that they will have another floating bunion. We understand the parents’ concern, but we suggest that they relax, the chance of this is very low, because I have not yet encountered a case of floating thumb in the first baby and floating thumb in the second baby. Can floating thumb be prevented? Since the cause of floating thumb is not yet known, we can only say that we can try to reduce the chance of it. Parents should try to stay happy and healthy during the period from the preparation of pregnancy to the birth of the child, and should stay away from second-hand smoke, formaldehyde and other harmful substances in their daily lives. If you are careful, but your baby still has a floating thumb, parents should take the child to treatment as soon as possible, through surgery to correct it, the timing is more appropriate around 6 to 1 year old, so that the child’s thumb function can be established more smoothly.